"That will be coming out next year," Garai told MSN TV. "It will feature Sputnik possibly and maybe the Notting Hill riots."

The actress, who plays television producer Bel Rowley, added: "It'll be about a year further on in time [from series one] with a whole load of new exciting developments on a world stage. And more nice dresses."

The Hour creator Abi Morgan previously confirmed that she had planned out a second series, revealing that the new run would be set nine months after series one.